//1. Add UIGestureRecognizerDelegate to your interface:

@interface DocumentViewControler : UIViewController <UIGestureRecognizerDelegate>

//2. Add to viewDidLoad

- (void)viewDidLoad {

    [super viewDidLoad];

    UITapGestureRecognizer* singleTap=[[UITapGestureRecognizer

                                        alloc]initWithTarget:self action:@selector(handleSingleTap:)];

    singleTap.numberOfTouchesRequired=1;

    singleTap.delegate=self;

    [self.webView addGestureRecognizer:singleTap];

    [singleTap release];

}

//3. Add:

-(BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer

shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer

                                                    *)otherGestureRecognizer {

    return YES;

}

//4.

-(void) handleSingleTap:(UITapGestureRecognizer *)recognizer  {

    NSLog(@"handleSingleTap");

    // Your code here

}

@end